Patch-envelop machine.



M. BERKOWHZ. PATCH ENVELOP MACHJ NE.

APPLICATION FILED OCT. 27. 1914.

Patented Nov. 30;-191 5.

SNEETS-SHEET l.

mvtmoa ATTORNEYS M, BERKUWITZ.

PATCH ENVELOP MACHINE.

APPLICATION FILED OCT. 27. m4.

Patented Nov. 30, 1915.

SHEET 2.

4 SHEETS MENTOR ARNES M. BERKOWITZ.

PATCH ENVELOP MACHHJE.

APPLICATION FlLED OCT. 21, 1914.

4 SHEETS-SHEET 3.

Patented Nov. 30, 19 15.

M. BERKOWITL PATCH ENVELOVP MACHINE. APPLICATION man OCT. 27, 1914.

Patent-ed Nov. 30, 1915.

4 SHEETSSHE ET 4.

mama.

A TTOR/VEYS.

' hopper, to apply parts in the same intermediate their extreme positions.

MAURICE BERKOWITZ, OF NEW YORK, N. Y.

PATCH-ENVELOP MACHINE.

having a sight opening covered by a trans parent patch, and its object is to provide a machine of simple and easily adjusted parts such as to be capable of producing a better product at an increased rate and with less machines now used for the wastage than the purpose; and such that the machine may be easily adapted to the manufacture of various styles of envelope differing from one another in the size, shape and location of the patch. I

To this end novel gumming mechanism has been devised, of few and simple parts, which can be easily and accurately timed with respect to the other moving elements of the machine, and which acts, in conjunction with a novel arrangement-of the patchthe gum reliably and evenly to the very ing and to ailix the patch at the first, or

picker, stage of the machine, that is, while a .the envelop blank is on the elevator and before it passes into the folding mechanism. Furthermore, the arrangement is such that by replacing the gumming die, its actuating cam, and the patch-hopper, a patch of any desired size may be applied to any selected portion of the face of the envelop.

Referring to the accompanying drawings showing an illustrative embodiment of the invention and in which the same reference numerals refer to similar parts in the figures: Figure l is a front elevational view of the envelop machine. Fig. 2 is an end elevational view thereof. Fig. 3 is a transverse sectional view taken on the line AB of Fig. 1, and Fig. l is a fragmentary longitudinal sectional view on the line of Fig. 2, all of these views showing the position. Figs. 5 and 6 are detail views showing the gum die plunger and the patch-hopper in Fig. 7 is a detail edge of the outlook open- Specification of Letters Patent. Patgntgd NOV, 30, 1915; Application filed October 27, 1914. Serial N6. 868,795.

Referring to the drawings, 1 designates the frame of an envelop machine, upon which is mounted an elevator table 2 adapted to support a pile of envelop blanks 3, which is automatically moved upward in the usual manner as the envelops are transferred from the top of the pile to the creasing. and folding mechanism.

Reciprocatingly mounted upon the frame 1 is avertical plunger 4 carrying at its lower end 'fiap gumming dies 5 of the usual type. The plunger is reciprocated by any suitable mechanism, as, for example, by a cam 6 secured to the cam shaft 7 and actuating a link 8 which is connected to the plunger 4; by means of a rock shaft 9 and cranks 10 and 11. When the plunger is in, its raised or inoperative position, the gumming dies 5 are supplied with gum in the usual manner by means of gumming rolls 12 carried on a horizontally extending frame 13 and adapted to be reciprocated by thelinks 58--58, 59-59 and shaft 60 actuated byv the usual cam mechanism, not shown. Gum is supplied to the gumming rolls 12 by means of a roller 61' rotating in a gum box 62. The parts thus far described form no part of the invention. being parts of /the usual envelop machines.

Reciprocatingly mounted is a horizontally extending slide 15 carrying at its inner end a gumnnn'g die 16, having the configuration. of the opening in the envelop blankfor applying gum around such opening.

As shown in Fig. 8, shock absorbing means are provided between the die 16 and the slide 15 comprising plunger-s 17 projecting from recesses 18 formed in the die, and being yieldingly held in engagement with the member 15 by means of springs 19.

Pins 20 carried by the member 15 and extending through elongated slots 21 formed in the die permit movement of the die relatively to the member- 15 when the die engages the blank. '1 he member 15 is reciprocated by means of a cam 22 mounted in the i ticularly cam shaft 7 and engaging a cam roll 23 carried on a pivoted lever 24 which is connected to the rock shaft 25 by a link 26. The rock shaft 25 is connected to the slide 15 by an arm 27 and a link 28. The cam '22 is so shaped and adjusted that the slide 15 will receive a complete reciprocating movement for each corresponding movement of the plunger -l and the movement of the parts is preferably so timed that the slide 15 will occupy its innermost position when, the plunger 4. is in its uppermost position.

In order that the die 16 may be applied to the envelop blank when theslide 15 is in it's innermost position, means are provided for vertically reciprocating the supporting bracket 14, which means consists of a rack 29 secured to the bracket and meshing with a segmental gear 30, secured to a shaft 31,

to which shaft a crank 32 is also secured.

Rocking movement is imparted to the crank 32 by means of a'link 33, one end of which is secured to the crank and the other end of which carries a cam roller 34 cooperating with a cam 35 secured to the cam shaft 7. The cam is so shaped and adjusted as to cause the die 16to assume its lowermost position when the slide 15 is in its innermost position, and as the slide 15 returns to its outermost position, to cause the die 16 to be raised from the blank and held in position to engage the die gumming roller 86, in order that the die may receive a fresh supply of gum for each envelop. after which the die will be raised to its uppermost position in which it remains until the slide 15 again occupies its innermost position. Gum is supplied to the gumming roller 36 means of a roller (it-Brotating in an auxiliar gum box (54. This arrangement fon apply-,

ing gum to the die 16 has the advantage (as compared with prior machines in winch the gum is a pplied to the iiap-gun'm'nng dies and to the die for supplying the patch gum by rollers supplied from a common gum box and replenisl'ied only for every alternate en velop,) that a special gum may be used pa 1'- compounded for use with the glazed paper or gelatin of which the patches are made; and the renewal for each envelop followed immediately by the application of the patch. produces the most lavm-able conditions for the use of the gum. thereby substantially reducing the diliiculties which have heretofore attended the gumming of such patches.

Positioned between the iiap gumming dies 5 is a hopper 37 in which is ea rried a pile of transparent patches 38- and a. weight or pressing plate (51. The hopper, which is positioned above the envelop blanks and in registry with the olienings therein, is supported by rods 39, slidingly mounted in guides 10 and 11 carried by the plunger 4. Th. hopper 37, which is urged to occupy its 1 provided with rollers 46 engaging collars 47 1 secured to the rods 39.

Rocking motion is given to the shaft 45 through crank -18, and link 49 which carries a cam roll 50 engaging a cam 51 secured to the cam shaft 7. The cam 51 is so shaped and adjusted with relation to the cam 6, controlling the movement of the shaft 9, that the dies 5 and the patch hopper 37 will travel downward in unison from their uppermost positions, until the .dies 5 engage the envelop blank, after which the dies will be held in engagement withthe blank while the hopper 37 is permitted to move. down relatively to the dies until the lowermost patch carried by the hopper will be brought into engagement with the gum which has been applied around the opening in the blank by the die 16 as above described. There then occurs a dwell producing a period of contactduring which the patch adheres to the gnmmed edges of the opening. The hopper 37 will then be raised relatively tothe dies which are still helpl in their envelop engaging position. As the hopper is raised the lowermost patch, which will adhere to the gum on the blank, will, of course, be withdrawn from the hopper and will be retained on the blank forming a' transparent covering for the opening. .After the hopper has been raised to pull the lowermost patch therefrom. the dies 5 and hopper 37 will thereafter be raised in unison, the dies 5 picking the envelop from the pile, and delivering it to the usual creasing and folding mechanism, notshown.

dings differing in shape and size from that shown in the drawings. it is only necessary to change the cam 22 to vary the throw of slide 15, to replaee the die 16 byone appropriately shaped to correspond to the new form of opening. and to replace the hopper 37 by one properly shaped and located to hold and apply the new form of patch.

in addition to the simplicity of the parts, laiding to reliability of operation of the gumming mechanism in exact time with the For making envelops provided with openother moving parts. the described machine 1 has the great advantage that the gum is applied about the opening in the envelop blank, and the patch is likewise applied to the blank, during the picker stage while the blank is solidly supported by the elevator or blank support.

What i claim is:

1. In a paleh envelop machine, a blank elevator adapted to supporta pile of enactuating the patch-hopper to press a patch vice into contact with the top blank of the pile to apply gum about the opening thereip and to subsequently bring the flap-gumming dies into contact with the said blank,

and a patch-applying device moving with. the fiap-gumming die carrier to apply a patch to the said blank, whereby the patch opening is closed before the blank is re-' moved from the pile.

2. In a machine for attaching patches to envelop-blanks having patch therein, a blank-supporting table and flap gumming mechanism, means for applying gum about the patch opening in the top envelop-blank while the blank is resting on said table, a patch-hopper carried by the fiap-gummlng mechanism, and means for on the gum-med envelop-blank before the envelop-blank is removed from the blanksupporting table.

' In a machine for attaching patches to envelop-blanks having patch openings therein, a blank-supporting table and flapgumming mechanism, means comprising a reciprocating die-carrier and a gumming die removably attached thereto for applying gum about the opening in the envelop-blank while the blank is on the table, a patchhopper removably attached to the flap-gumming'mechanism, and means for actuating the patch-hopper to press a patch on the gummed envelop-blank before the envelopblank is removed from the blank-supporting table.

4. In a machine for attaching patches to envelop-blanks having patch openings therein, a blank-supporting table, flap-gumming dies arranged to descend upon the top envelop-blank on said table, and a gum-box and gum-rollers for applying gum to the flap-gumming dies, in combination with an auxiliary gum-box, a gumming-die supplied therefrom and shaped to apply gum about the opening in the envelop-blank, mechanism for actuating said die to bring it over and press it upon the envelop blank while the blank .is resting on the table, and means openings for thereafter applying the patch to the blank before it is removed from the blank supporting table.

5. In a machine for attaching patches to envelop-blanks having patch openings therein, a blank-supporting table, flap-gumming dies arranged 5 to descend upon the top envelop-blank on said table, and a gumbox and gum-rollers'for applying'gum to the fiapgumming dies, in combination with an auxiliary gumbox, a gum-die shaped to apply gum about the opening in the envelop-blank, mechanism for actuating said die to bring it over and press it upon the envelop-blank while the blank is resting on the said table, and f or applying gum to the die from said auxiliary-gum box at each actuation thereof, whereby the gum is renewed on said die for each envelop, and mechanism for applying a patch to the gummed blank before it is removed from the blank-supporting table.

6. Mechanlms envelop-blanks in machines of the character described, comprising reciprocating flapgumming dies and a reciprocating patchhopper associated therewith, and niechanism for moving the flap-gumming dies into and out of engagement with an envelopblank and for moving the patch hopper into engagement with the envelop blank and for moving it out of engagement with the blank during the time that the flap-gumming dies are in engagement therewith.

7. In a machine for attaching patches to envelop blanks having patch openings therein, a blank-supporting table, reciproeating flap-gumming dies, a reciprocating patch-hopper associated with the flap-gum ming dies, gumming mechanism for applying gum about the patch-opening in the top envelop-blank on said table and mechanism for moving the fiap-gumming dies into and out of engagement with said envelop-blank on the table and for moving the patch-hopper into engagement with the envelop blank and for moving it out of engagement with the blank during the time that the flapgumming dies are in engagement therewith.

In testimony whereof I afiix my signa-' ture, in presence of two witnesses.

MAURICE BERKOWITZ.

W'itnesses:

M. A. BILL,

KATIIARIN E SCHULZ.

for applying patches to 

